Add validation step at the end of the Run processing

[tcezard]

We need to make sure the data generated by the Run process is valid.
We can run something as simple as gzip -t or validate the fastq format with FastqValidator or validate the number of reads by making sure we have exactly the number of reads that are expected using

• number of reads Conversion file
• number of reads removed in the Adapter filtering
• number of reads remove in fastqfilterer steps

[tcezard]

A first validation step was added in #210 that check gzip validity